Search Results for author: Yuxuan Lai

Found 16 papers, 10 papers with code

Dual-Channel Evidence Fusion for Fact Verification over Texts and Tables

no code implementations NAACL 2022 Nan Hu, Zirui Wu, Yuxuan Lai, Xiao Liu, Yansong Feng

Different from previous fact extraction and verification tasks that only consider evidence of a single format, FEVEROUS brings further challenges by extending the evidence format to both plain text and tables.

Fact Verification

Teaching Text-to-Image Models to Communicate in Dialog

no code implementations27 Sep 2023 Xiaowen Sun, Jiazhan Feng, Yuxuan Wang, Yuxuan Lai, Xingyu Shen, Dongyan Zhao

In this paper, we focus on the innovative dialog-to-image generation task, where the model synthesizes a high-resolution image aligned with the given dialog context as a response.

Sentence Text-to-Image Generation

Improving the Generalization Ability in Essay Coherence Evaluation through Monotonic Constraints

no code implementations25 Jul 2023 Chen Zheng, huan zhang, Yan Zhao, Yuxuan Lai

To address these concerns, we propose a coherence scoring model consisting of a regression model with two feature extractors: a local coherence discriminative model and a punctuation correction model.

Coherence Evaluation regression +1

How Many Answers Should I Give? An Empirical Study of Multi-Answer Reading Comprehension

1 code implementation1 Jun 2023 Chen Zhang, Jiuheng Lin, Xiao Liu, Yuxuan Lai, Yansong Feng, Dongyan Zhao

We further analyze how well different paradigms of current multi-answer MRC models deal with different types of multi-answer instances.

Machine Reading Comprehension

Cross-Lingual Question Answering over Knowledge Base as Reading Comprehension

1 code implementation26 Feb 2023 Chen Zhang, Yuxuan Lai, Yansong Feng, Xingyu Shen, Haowei Du, Dongyan Zhao

We convert KB subgraphs into passages to narrow the gap between KB schemas and questions, which enables our model to benefit from recent advances in multilingual pre-trained language models (MPLMs) and cross-lingual machine reading comprehension (xMRC).

Cross-Lingual Question Answering Machine Reading Comprehension

Event Transition Planning for Open-ended Text Generation

1 code implementation Findings (ACL) 2022 Qintong Li, Piji Li, Wei Bi, Zhaochun Ren, Yuxuan Lai, Lingpeng Kong

Open-ended text generation tasks, such as dialogue generation and story completion, require models to generate a coherent continuation given limited preceding context.

Dialogue Generation Story Completion

Extract, Integrate, Compete: Towards Verification Style Reading Comprehension

1 code implementation Findings (EMNLP) 2021 Chen Zhang, Yuxuan Lai, Yansong Feng, Dongyan Zhao

In this paper, we present a new verification style reading comprehension dataset named VGaokao from Chinese Language tests of Gaokao.

Reading Comprehension

Why Machine Reading Comprehension Models Learn Shortcuts?

1 code implementation Findings (ACL) 2021 Yuxuan Lai, Chen Zhang, Yansong Feng, Quzhe Huang, Dongyan Zhao

A thorough empirical analysis shows that MRC models tend to learn shortcut questions earlier than challenging questions, and the high proportions of shortcut questions in training sets hinder models from exploring the sophisticated reasoning skills in the later stage of training.

Machine Reading Comprehension

Lattice-BERT: Leveraging Multi-Granularity Representations in Chinese Pre-trained Language Models

2 code implementations NAACL 2021 Yuxuan Lai, Yijia Liu, Yansong Feng, Songfang Huang, Dongyan Zhao

Further analysis shows that Lattice-BERT can harness the lattice structures, and the improvement comes from the exploration of redundant information and multi-granularity representations.

Natural Language Understanding Sentence

Domain Adaptation for Semantic Parsing

no code implementations23 Jun 2020 Zechang Li, Yuxuan Lai, Yansong Feng, Dongyan Zhao

In this paper, we propose a novel semantic parser for domain adaptation, where we have much fewer annotated data in the target domain compared to the source domain.

Domain Adaptation Semantic Parsing

Integrating Relation Constraints with Neural Relation Extractors

1 code implementation26 Nov 2019 Yuan Ye, Yansong Feng, Bingfeng Luo, Yuxuan Lai, Dongyan Zhao

However, such models often make predictions for each entity pair individually, thus often fail to solve the inconsistency among different predictions, which can be characterized by discrete relation constraints.

Relation Relation Extraction

A Sketch-Based System for Semantic Parsing

1 code implementation2 Sep 2019 Zechang Li, Yuxuan Lai, Yuxi Xie, Yansong Feng, Dongyan Zhao

The sketch is a high-level structure of the logical form exclusive of low-level details such as entities and predicates.

Semantic Parsing Task 2

Enhancing Key-Value Memory Neural Networks for Knowledge Based Question Answering

no code implementations NAACL 2019 Kun Xu, Yuxuan Lai, Yansong Feng, Zhiguo Wang

However, extending KV-MemNNs to Knowledge Based Question Answering (KB-QA) is not trivia, which should properly decompose a complex question into a sequence of queries against the memory, and update the query representations to support multi-hop reasoning over the memory.

Question Answering Reading Comprehension +1

Lattice CNNs for Matching Based Chinese Question Answering

1 code implementation25 Feb 2019 Yuxuan Lai, Yansong Feng, Xiaohan Yu, Zheng Wang, Kun Xu, Dongyan Zhao

Short text matching often faces the challenges that there are great word mismatch and expression diversity between the two texts, which would be further aggravated in languages like Chinese where there is no natural space to segment words explicitly.

Question Answering Text Matching

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